Improvement in roofing-compositions



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ALBERT RUTVTKAY, on NEW YORK, Y.

Letters Patent No. 109,254, dated November 15, 1870.

'IM PROV EMEN T IN ROOFING-COM POSITIONS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that I, ALBERT RUTTKAY, of the city, county, and State of 'N ew York, have invented a new and useful Improvement in Roofing-Compost lions, of which the following is a specification.

Nature and Objects of the Invention.

General Description.

The invention consistsof sand or finely-sifted grave], or other material of a similar character, pulverized brick, or burnt clay reduced to a powder, litharge, and linseed-oil, in the following or similar proportions.

V Formula. Three (3) pounds of sifted gravel or sand. One-half (e) pound of pulverized brick. One-eighth pound of litharge.

One-fourth pound of linseed-oil.

One-sixteenth 3) pound of liquid Japan.

The above ingredients, in the proportions stated, are thoroughly intermixed in a vessel sufilciently tight to prevent the escape of the oil. The product may then be compressed in molds or laid over any roof or the interior of avessel intended to contain liquids, and rolled or otherwise reduced to a covering of regular and even surface and thickness. It is then allowed to remain undisturbed, and will harden according to the density of the covering, into a consistent mass, impervious to water, non-combustible, of great tenacity and hardness, as well as being entirely capable of resisting the effects-of frost or sun, and cannot be disintegrated by hot water.

have hereunto set my hand and seal, this 10th day of October, 1870. 1

V ALBERT RUTTKAY. [n s.]

Witnesses:

. O. O.'H. Hormone,

R. O. KoRNEY. 

